package com.hidataplus.hadoop.tezui;


import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class LoginServlet
 */
@WebServlet("/LoginServlet.do")
public class LoginServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
    public static Logger logger = LoggerFactory.getLogger(LoginServlet.class);

    /**
     * @see HttpServlet#HttpServlet()
     */
    public LoginServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        // response.getWriter().append("Served at: ").append(request.getContextPath());

    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        //doGet(request, response);
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        User user = new User();
        user.setUsername(username);
        user.setPassword(password);
        logger.info("username:" + username);
        logger.info("password:" + password);
        if (UserLogin.checkPassword(user)) {
            HttpSession session = request.getSession();
            session.setAttribute("user", user);
            HttpSession httpSession = request.getSession();
            User userExists = (User) httpSession.getAttribute("user");
            logger.info("userExists:" + userExists);
            response.sendRedirect("index.html");
        } else {
//            response.getWriter().write("login failed!");
            PrintWriter out = response.getWriter();
            out.print("<script language='javascript'>alert('login failed!');window.location.href='login.jsp';</script>");
            out.flush();
            out.close();
        }

    }
}
